Girlawhirl loves to check out the summer hair products – those that promise tousled curls, and weightless conditioning. She tries them all, finds a few that work like a charm for her hair and stocks up before they're gone, because sometimes they don't return until next summer rolls around. A few of this season's favs that have given her wavy hair more volume, softness and oomph include items from Frédéric Fekkai's Marine Summer Hair collection and Ojon's new Restorative Hair Treatment Spray…